In the Eastern States the larva of the celery fly is a great foe to the culture of this vegetable. Under its attacks the edges of the leaflets are browned as it burned. The plants only grow weakly when subject to these troubles. Mr. B. T. Galloway in the Botanical Gazette says that at Columbia, Missouri, the plant also suffers much from the attack of a small parasitic fungus, which attacks the leaves in July, disappearing in September. It is called Cercospora Apii. Moisture and bright sunlight seem necessary to the growth of this fungus parasite. The germinating bodies (conidia) sprout in three hours in sunshine after the leaves have been moistened.